Chem. Commun.

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An amphiphilic, catalytically active, vitamin B12 derivative

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4674-4676
DOI: 10.1039/C4CC01064G, CommunicationM. Giedyk, S. N. Fedosov, D. Gryko
The reaction of vitamin B12 with DMF-DMA and MeOH as a nucleophile affords cobalester, the first amphiphilic cobalamin derivative which is able to catalyze C-C bond forming reactions.
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DNA-based sensitization of Tb3+ luminescence regulated by Ag+ and cysteine: use as a logic gate and a H2O2 sensor

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4677-4679
DOI: 10.1039/C4CC01065E, CommunicationMin Zhang, Zhi-bei Qu, Hai-Yan Ma, Tianshu Zhou, Guoyue Shi
A simple and facile strategy was developed for regulating the luminescence of Tb3+ sensitized by DNA.
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Upconversion fluorescence resonance energy transfer biosensor for sensitive detection of human immunodeficiency virus antibodies in human serum

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4759-4762
DOI: 10.1039/C4CC00569D, CommunicationYan-Mei Wu, Yao Cen, Li-Jiao Huang, Ru-Qin Yu, Xia Chu
An upconversion FRET-based biosensor has been developed for the sensitive and selective determination of HIV antibodies in human serum.
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Electrochemical redox responsive polymeric micelles formed from amphiphilic supramolecular brushes

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4740-4742
DOI: 10.1039/C4CC00463A, CommunicationAnchao Feng, Qiang Yan, Huijuan Zhang, Liao Peng, Jinying Yuan
Supramolecular polymer brushes can self-assemble into micellar aggregates that exhibit reversible assembly and disassembly behavior under an electrochemical redox trigger.
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Discovery of anion-[small pi] interactions in the recognition mechanism of inorganic anions by 1,2,3-triazolium rings

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4680-4682
DOI: 10.1039/C4CC00169A, CommunicationAntonio Caballero, Fabiola Zapata, Lidia Gonzalez, Pedro Molina, Ibon Alkorta, Jose Elguero
The simultaneous action of two noncovalent interactions in solution, hydrogen-bonding and anion-[small pi], resulted in a selective receptor for HP2O73- anions.
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Environmentally-benign catalysts for the selective catalytic reduction of NOx from diesel engines: Structure-activity relationship and reaction mechanism aspects

8 April, 2014 - 13:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC01098A, Feature ArticleFudong Liu, Yunbo Yu, Hong He
Selective catalytic reduction of NOx with NH3 or hydrocarbons (NH3-SCR or HC-SCR) in oxygen-rich exhaust from diesel engines remains a major challenge in environmental catalysis. The development of highly efficient,...
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Transition-metal-free, visible-light induced cyclization of arylsulfonyl chlorides with 2-isocyanobiphenyls to produce phenanthridines

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4643-4645
DOI: 10.1039/C4CC01487A, CommunicationLijun Gu, Cheng Jin, Jiyan Liu, Hongyan Ding, Baomin Fan
A visible-light promoted transformation of 2-isocyanobiphenyls and arylsulfonyl chlorides for the synthesis of phenanthridines under oxidant-free and transition-metal-free conditions was described.
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Reductive generation of stable, five-membered N,N[prime or minute]-diamidocarbenes

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4551-4553
DOI: 10.1039/C4CC00846D, CommunicationJonathan P. Moerdyk, Christopher W. Bielawski
The first stable, five-membered N,N[prime or minute]-diamidocarbenes were synthesized via the reduction of a geminal dichloride precursor with potassium.
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An electrochemical method for the synthesis of few layer graphene sheets for high temperature applications

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4613-4615
DOI: 10.1039/C3CC48055K, CommunicationPitamber Mahanandia, Frank Simon, Gert Heinrich, Karuna Kar Nanda
We demonstrate an electrochemical technique for large scale synthesis of high quality few layer graphene sheets directly from graphite. The graphene sheets are stable up to 800 [degree]C and hence have potential application in solid oxide fuel cells as gas diffusion layer.
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Bulky toroidal and vesicular self-assembled nanostructures from fullerene end-capped rod-like polymers

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4571-4574
DOI: 10.1039/C4CC01477D, CommunicationD. Mazzier, M. Mba, M. Zerbetto, A. Moretto
In this work, we present novel fullerene (C60) end-capped rod-like polypeptide-polymers, obtained by one-pot thiol-ene chemistry.
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Self-healing catalysts: Co3O4 nanorods for Fischer-Tropsch synthesis

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4575-4578
DOI: 10.1039/C4CC01021C, CommunicationCun Wen, Darrius Dunbar, Xin Zhang, Jochen Lauterbach, Jason Hattrick-Simpers
We combine kinetic and spectroscopic data to demonstrate the concept of a self-healing catalyst, which effectively eliminates the need for catalyst regeneration. The observed self-healing is triggered by controlling the crystallographic orientation at the catalyst surface.
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Solvatochromic probes for detecting hydrogen-bond-donating solvents

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4579-4581
DOI: 10.1039/C4CC00805G, CommunicationRyan F. Landis, Mahdieh Yazdani, Brian Creran, Xi Yu, Vikas Nandwana, Graeme Cooke, Vincent M. Rotello
Distinguishing hydrogen bonding from polarity is possible using these solvatochromic dyes.
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Copper-mediated S-N formation via an oxygen-activated radical process: a new synthesis method for sulfonamides

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4582-4584
DOI: 10.1039/C4CC01353K, CommunicationXin Huang, Jichao Wang, Zhangqin Ni, Sichang Wang, Yuanjiang Pan
A copper-mediated direct synthesis of sulfonamides via an oxygen-activated radical process has been developed.
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Bimetallic Pd-Cu nanocrystals and their tunable catalytic properties

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4588-4591
DOI: 10.1039/C4CC01051E, CommunicationJunjie Mao, Yuxi Liu, Zheng Chen, Dingsheng Wang, Yadong Li
Monodisperse Pd-Cu nanocrystals with controlled compositions and sizes were obtained in an octadecylamine synthetic system, which exhibited tunable catalytic properties.
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Potassium-selective optical microsensors based on surface modified polystyrene microspheres

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4592-4595
DOI: 10.1039/C4CC01313A, CommunicationXiaojiang Xie, Gaston A. Crespo, Jingying Zhai, Istvan Szilagyi, Eric Bakker
Ion-selective microspheres based on surface modification of polystyrene particles (0.8 and 2.4 [small mu ]m, diameter) are presented here for the first time.
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Composite porous membranes with an ultrathin selective layer for vanadium flow batteries

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4596-4599
DOI: 10.1039/C3CC49729A, CommunicationYun Li, Xianfeng Li, Jingyu Cao, Wanxing Xu, Huamin Zhang
This work provides a simple method to fabricate composite membranes, combing excellent performance and low cost for VFB application.
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A gold-catalysed imine-propargylamine cascade sequence: synthesis of 3-substituted-2,5-dimethylpyrazines and the reaction mechanism

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4567-4570
DOI: 10.1039/C4CC01485E, CommunicationBenito Alcaide, Pedro Almendros, Jose M. Alonso, Israel Fernandez, Gonzalo Gomez-Campillos, M. Rosario Torres
The gold-catalysed coupling reaction between propargylamine-derived imines and propargylamine exclusively afforded pyrazines.
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Photocatalytic chemoselective reduction of epoxides to alkenes along with formation of ketones in alcoholic suspensions of silver-loaded titanium(IV) oxide at room temperature without the use of reducing gases

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4558-4560
DOI: 10.1039/C3CC49340G, CommunicationHiroshi Kominami, Satoshi Yamamoto, Kazuya Imamura, Atsuhiro Tanaka, Keiji Hashimoto
(2,3-Epoxypropyl)benzene was chemoselectively reduced to allylbenzene along with formation of ketones in alcoholic suspensions of a Ag-TiO2 photocatalyst.
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Controlled thioamide vs. amide formation in the thioacid-azide reaction under acidic aqueous conditions

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4603-4606
DOI: 10.1039/C4CC00774C, CommunicationMichaela Muhlberg, Kristina D. Siebertz, Brigitte Schlegel, Peter Schmieder, Christian P. R. Hackenberger
Unprecedented thioamide formation was observed for the reaction of electron-rich azides and thioacetic acid at low pH. A new mechanism was postulated.
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Tin-catalyzed conversion of biomass-derived triose sugar and formaldehyde to [small alpha]-hydroxy-[gamma]-butyrolactone

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4600-4602
DOI: 10.1039/C4CC00954A, CommunicationSho Yamaguchi, Ken Motokura, Yasuharu Sakamoto, Akimitsu Miyaji, Toshihide Baba
A novel transformation of biomass-derived triose sugar and formaldehyde into [small alpha]-hydroxy-[gamma]-butyrolactone (HBL) through the use of tin(IV) chloride.
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